hgview #109855 Replace current filtering widget with helper to use the generic revset filtering [open]

We have several widget to filter on various criteria branch, start revs, closed head, etc

Replacing them with a "menu" giving access to pre-generated revset query would be save a lot of place.

priorityimportant
typeenhancement
done in<not specified>
load2.000
load left2.000
closed by<not specified>